How does Acetyl-l-carnitine work?

Acetyl-L-carnitine helps the body produce energy. It is important for heart and brain function, muscle movement, and many other body processes.

Are there safety concerns?

Acetyl-L-carnitine seems to be safe for most adults. It can cause some side effects including stomach upset, nausea, vomiting, and restlessness. It can cause a "fishy" odor of the urine, breath, and sweat.